Mouth guard



FIG. 1 is an upper frontal perspective view of a mouth guard showing mynew design;

FIG. 2 is a lower frontal perspective view of the mouth guard shown inFIG. 1;

FIG. 3 is a front view of the mouth guard shown in FIG. 1;

FIG. 4 is a first side view of the mouth guard shown in FIG. 1;

FIG. 5 is a second side view of the mouth guard shown in FIG. 1;

FIG. 6 is a rear view of the mouth guard shown in FIG. 1;

FIG. 7 is a top view of the mouth guard shown in FIG. 1;

FIG. 8 is a bottom view of the mouth guard shown in FIG. 1;

FIG. 9 is an upper rear perspective view of the mouth guard shown inFIG. 1; and,

FIG. 10 is a lower rear perspective view of the mouth guard shown inFIG. 1.

The ornamental design for a mouth guard, as shown and described.